Arc fault detection method, device and equipment and storage medium

Abstract

The embodiment of the invention provides an arc fault detection method, device and equipment, and a storage medium. The method comprises the steps of obtaining a current waveform of a current signal of a current period and a current waveform of a current signal of a previous period; determining current waveform deviation characteristics of the current waveform of the current period current signal and the current waveform of the previous period current signal; and determining whether an arc fault occurs in the circuit according to the current waveform deviation characteristic and the first zeroing zone duration of the current waveform of the current period current signal. In the prior art, a large number of samples are needed to train an intelligent algorithm or a neural network model for arc fault detection. A large number of samples are not needed, and the early-stage investment of arc fault detection is reduced; sample limitation is eliminated, the method is suitable for most arc fault detection scenes, and the universality and accuracy of the detection method are improved; and an intelligent algorithm and a neural network model do not need to be set and operated in the detection equipment, so that the performance requirements of memory and the like of the detection equipment are reduced.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to an arc fault detection method, device, equipment and storage medium. Background technique [0002] Arc is a gas discharge phenomenon accompanied by strong light and high heat, which can easily cause fire or even explosion under certain circumstances, seriously threatening personal safety and electrical equipment safety. In the analysis of fire causes in China, fires caused by electrical causes accounted for more than 30%. There are many reasons for electrical fires, such as: short circuit, insulation aging, overcurrent, ground fault, poor contact, household appliances or electric heating equipment igniting combustibles, etc. Essentially, all electrical fires are accompanied by arcing. Therefore, arc fault detection can largely prevent electrical fires and protect personal safety and property safety. [0003] In the prior art, arc fault detection is generally carried out in...

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide an arc fault detection method, device, equipment, and storage medium, which are used to solve the problems of high hardware performance requirements, poor versatility, and low accuracy for arc fault detection in the prior art

Images